I'm glad you asked. I sincerely believe that Iger et al have decided that if they are going to do something at the parks they are going to do it right. To do that they are concentrating what park investment dollars they have allocated at a few problem areas until they are fixed right. That means not attacking the problem in small doses at all the parks. They made the decision the biggest need was DCA which is where the efforts are being directed (and HOW!).
There is a second issue and that is with WDI. There is a limited amount of talent that can pull off what most fans expect from WDI and only a certain ammount of money Disney is willing to invest in that talent. Iger has focused WDI like a laser beam on a certain number of projects and WDI can only do so much. Iger's goal seems to be quality over quantity. Hmmmm, just like Walt!
So that brings us to WDW. I believe everyone at TDO and WDI in Orlando could bounce their way all the way to Glendale on pogo sticks to prove their passion for new projects and to win over the resources for those projects (money) and it wouldn't matter a wit. WDW is not the focus as other projects are deemed more important. But that will not always be the case.
I advise patience.
PS all of the above is my opinion. Since so many people here are threatened by strong opinions, I guess I need to add that.